Why does this abort right on the UIlabel?

Question

I connected the UILabel and UIButton but is still aborts. Please help me fix this.

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        counterLabel.text = "0"
        // Do any additional setup after loading the view, typically from a nib.
    }
    var counterNum: Int = 0

    @IBOutlet weak var counterLabel: UILabel!

    @IBAction func Tap(_ sender: UIButton) {

        self.counterNum += 1
        self.counterLabel.text = String(self.counterNum)
    }
}

Why did you include `func didReceiveMemoryWarning`? Please only add _relevant_ code to your question. — Ashley Mills, Mar 03 '17 at 16:28
2017-03-03 18:43:48.521 #57[30240:689945] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<_57.ViewController 0x7fd2cef029c0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key Tap.' This is what it says — Leon Vladimirov, Mar 03 '17 at 16:36
Please edit your question, remove unnecessary code and add this information. If you improve your question, you have a better chance of getting a good answer. — Ashley Mills, Mar 03 '17 at 16:40
We need more info. What "abort" means? Which is the error message displayed? Thank you. — Giuseppe Lanza, Mar 03 '17 at 16:42
Do a search on "this class is not key value coding-compliant for the key". This has been asked and answered a million times before. — matt, Mar 03 '17 at 16:47
It looks like in this case you made an _outlet_ to Tap whereas what you actually want is an _action_ from the button. Or maybe you made the outlet to Tap when you intended an outlet to counterLabel. — matt, Mar 03 '17 at 16:48

score 0 · Answer 1 · answered Mar 03 '17 at 16:40

0

Please check your outlet connect in your storyboard for counterLabel. It seems you forget to do the outlet connection.

answered Mar 03 '17 at 16:40

KGen

50
3

it says Tread1:signal SIGABRT – Leon Vladimirov Mar 03 '17 at 16:43

Why does this abort right on the UIlabel?

1 Answers1